Concrete-mixer



W. E. PALMETER.

CONCRETE MIXER. APPLICATION FILED JAN. 2. 1920.

1,388, 1 1 8. Patented Aug. 16, 1921.

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CONCRETE MIXER. APPLICATION FILED JAN.2, I920.

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'table type having means scribed WILLIAM ngrannnrnn,

v Appiicationfiled January To allwhom it mayconcem: V 7

Be it known that 1, WILLIAM E. PALME- TER, a citizen. of the UnitedStates and resident of Elmwood, in the county of Cass and State ofNebraska, have invented certain new and useful Improvements inConcrete-Mixers, of which the following is ,a specification;

The present invention relates to concrete mixers and has for its primaryobject the provision of a concrete mixer of the rotafor driving themixer while performing a. mixing operation and while being emptied.

Another object of my-invention is to provide a concrete mixer of theclass described driving means imparting. a

having an even, continuous action to the mixer regardless. of theposition of the same.

A further object of my invention is to provide which is strong anddurable, eifective in operation, cheap to manufacture and simpleinconstruction.

7 Other objects and advantages to be demixer will appear from thefollowing detail description and the claim,taken with an inspection ofthe accompanying drawings in which:

V .Figure 1 is a side elevational view of a concrete mixer embodying theimprovements of my invention;

Fig. 2 is a similar view of the opposite side of the machine, the samebeing shown tilted for filling; g 1

Fig. 3 is a top plan view-of the same, a portion of the mixer beingbroken away; and r Fig. A: is a transverse sectional view of the mixer.

Referring more particularly to the drawings', wherein similar charactersof refer ence designate like. and corresponding parts throughout thevarious views, 10 designates the longitudinal parallel stringers of thebase frame of my improved mixing device, sa d stringers 10 beingconnected by transverse stringers 11. 7

Standards 12,13 and14 are mounted on V the stringers 10, the upper freeends of said standards being formed with bearings 15, 16 and 17,respectively.

The mixer carrying frame is designated a concrete mixer of the class deof my improved concretej ED STAT Es P 1ogrric or ELMWOOD, N BRASKA.

GONGRETE-MiXEZB.

Specification of Letters Patent; Patented A di :16. 1921 2, 1920. serialnc. 348,755.

F in its entiretyand is preferably u -shaped, sald frame being "providedwith atransverse port on 18 and parallel arms 19, said arms beingprovided with trunnionsi 20 and 21,

the vtrunnion portion 21 being hollow for a I purpose which -willhereinafter appear. The trunnions 20, and 21 are mounted in the bearingsvl5 and-16.. A leven 22is mounted on the free end'of the trunnion'20 foroscillating the same for a purpose which will hereinafter appear. Themixer container in cludes a cylindrical hollow member 23 having abearing trunnion 24 on the rear end thereof, said bearing trunnionengaging the transverse portion 18 of the frame F. A bearing ring 25is'carried by the free ends of the arms 19, said bearing ringsencircling the container 23 adjacent the front 'end thereof, a pluralityof bearing rollers 26 being carried by said rings and engaging saidcontainer. vided interiorly with the usual spiral agitating blade 27. I

The driving mechanism for the container 23 includes a pulley wheel 28carried on a shaft 29, said shaft being journaled in the trunnion'21 andbearing 17. A driving wheel 30 is mounted on the inner end of theshafti29, said wheel having pins 31 thereon for engagement with anangle-iron 32 carried on the container 23, saidangle-iron be ingprovided with a plurality of apertures '33 spaced for engagement by saidpins '31.

In using my improved mixer power is imparted to the mixing container 23from the pulleys, and when it is desired to tilt the container foremptying while in motion, the lever 22 is in operation, I the container23 is disposed with its open end elevated, the extremity of the lever 22bearing upon the ground, asin (heated in Fig. 2, thus maintaining thecon- The container 23 is pro-- raised. When the mixer 1s:

tainer in a rea'rwardly' inclined position, and V acting to brace and;steady the same and its supporting frame durlng the mixing opera-' tion.Thus it will be seen that in the pro:

:for thoroughly mixing without the provisionof complicated andineflicient supporting and driving Qmeans. desire to lay particularstress upon thelight and durable construction of the device pervision ofmy improved mixer I afford means concrete and the like desired thedevice may be mounted on a truck or the like, however, the showing madein the drawing is the preferred arrangement of myinvention.

From the above description taken in connection with the accompanyingdrawings, it is thought that a clear and comprehensive understanding ofthe construction, operation and advantages of my invention may be had,and while I have shown and described the device as embodying a specificstructure, I desire that it be understood that such changes maybe madein said structure as do not depart from the spirit and scope of theinvention as claimed.

Having thus fully described my invention, what I claim'as new and desireto secure by Letters Patent, is:

In a concrete mixer, a cylindrical mixer container normally disposed inupwardly inclined position and having its upper end open, a support forsaid container, means for rotating said container, and a lever connectedto said container and extending outwardly and downwardly at one side ofthe same beyond the closed end thereof and at an angle to the axis ofthe container, the free end of said-lever normally acting to sustainsaid container in position for the mix ing operation and also acting tobrace the same and said support during such operation, said lever beingoperable for tilting said container to and from dumping position.

In testimony whereof I aflix my signature hereto.

WILLIAM E. PALMETER.

